Contact person: Construction Supply eCommerce App Development

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Location: Perth, Australia

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I want to build an app to put material suppliers in direct contact with builders, contractors and the public. I will require the following and already have a basic design and flow created on Uizard. Please read the following and give only qyotes that represents the actual final costs.


App Concept Overview: Builder-Supplier Procurement & Design Platform
Purpose: An end-to-end B2B platform designed for contractors, builders, and suppliers—knitting together geolocation-based supplier discovery, dynamic product cataloging, custom flashing design, and a robust order lifecycle with real-time tracking.
Core Features
A. Location-Aware Supplier Discovery
• Users can share real-time GPS location or enter a postcode/suburb.
• The app filters and displays only suppliers that deliver to the user-specified area.
• Suppliers define delivery zones using geofencing or postal boundaries.
• Option to toggle between "Nearby suppliers only" and "All suppliers."
B. Custom Flashing Design Module (Inspired by [login to view URL])
• Intuitive drawing interface built on a robust graphics engine (like Skia) with gesture support—tap, drag, pinch, etc.—as seen in [login to view URL]’s custom designer ([login to view URL]).
• Save, reuse, and organize custom flashing templates into a personal library.
• Annotate designs with dimensions, folds, material notes; support both metric and imperial units ([login to view URL], FlashIt).
• Export designs into precise PDFs showing girths, folds, totals—optimised for supplier manufacturing workflows (FlashIt).
• Suppliers receive these orders with easy-to-read layouts (PDF dashboards) and manage them effectively (FlashIt).
“Draw your flashings quickly and easily… Organise all your flashings neatly… Order your flashings at the touch of a button” (FlashIt, Apple).
C. Product & Catalog Management
• Import product lists from Excel/CSV while preserving categories and metadata.
• Organize products into structured categories (e.g., roofing, fasteners, flashings).
• Duplicate lists tailored for public, trade, and builder accounts—propagate updates from one list to all.
• Flexible pricing: update by product, category, or globally; apply adjustments by fixed amount or percentage; tier pricing by account type.
D. User & Supplier Account Hierarchies
• Users can register as public, trade, or builder accounts—with verification for higher tiers via document uploads.
• Main company accounts manage sub-accounts (e.g., sales reps) with granular permissions like drafting lists or placing orders.
• Drafts can be sent to main accounts for sign-off or submitted directly if permitted.
E. Order Tracking & Lifecycle
• Fully tracked order flow:
• Order Placed
• Order Confirmed
• Order Packed
• Ready for Pick-Up or Out for Delivery
• Delivered (with option for delivery drivers to upload site photos)
• Reflects best practices in procurement tracking to improve visibility and reduce delays ([login to view URL], [login to view URL]).
• Mirrors standard order management systems with workflow automation and customer communication at each stage (Wikipedia).
F. Payment & Commission
• Once an order is accepted, a 1% platform fee is automatically deducted as commission from the total sale.
Additional Enhancements
• Mobile Procurement & Notifications
• Push notifications for order stage transitions (e.g., “Your order has been packed” or “Delivery is underway”).
• Mobile-focused interfaces for approvals, status tracking, and supplier communications (Wikipedia).
• Analytics & Performance Insights
• In-platform dashboards for suppliers and contractors: order turnaround times, average delivery window, usage metrics, and budget reports (Procurement Tactics, [login to view URL]).
• Integration & Automation
• Optionally integrate with ERPs or accounting tools for automatic invoicing, quoting, and stock updates.
• Flashing module integration with manufacturing tools to reduce re-entry errors (FlashIt).
• Offline Capability (for Mobile)
• Limited offline mode for drafting orders or drawings, syncing when back online—mimicking features in advanced procurement apps (Oxalys).
Development & Technical Considerations
1. System Architecture
• Front-end: React (web) + React Native or Flutter for mobile; incorporate Skia/WebGL for drawing.
• Back-end: Node.js (Express) or Django; using PostGIS for geospatial queries; PostgreSQL.
• PDF Engine: Server-side rendering (e.g., Puppeteer, PDF libraries) for accurate flashing exports.
2. Geolocation and Spatial Filtering
• Build geospatial data model: Delivery zone polygons or radius per supplier.
• Implement real-time geolocation or postcode lookup to query local suppliers efficiently.
3. Drawing Module
• Use Skia or comparable canvas with gesture recognition.
• Persist design templates and metadata for reuse and editing.
• Ensure PDF fidelity and accurate annotation.
4. Order Lifecycle & Tracking
• Order state machine backend model to manage state transitions.
• Driver interface to upload delivery confirmation photos.
• Event-driven notifications for users at each status.
5. Permissions & Workflow
• Role-based access control via authentication system (e.g., JWT).
• Admin UI for document verification, supplier table setup, and zone management.
6. Performance & Scalability
• Cache geolocation results; use CDNs for asset delivery.
• Ensure responsiveness of drawing module on older mobile devices.
• Cloud-hosted infrastructure with CI/CD and horizontal scaling.
7. Security & Compliance
• Secure authentication and authorization.
• HTTPS, encrypted storage for documents.
• Audit logs for order changes, access history.
8. Testing & User Feedback Loops
• Pilot testing with contractors (especially roofers) for flashing tool UX.
• Iterate on live-tracking experience and usability of location-based filtering.
Summary
This integrated app design weaves together:
• Geolocation filtering for suppliers.
• Flash-It–style drawing module, with template libraries, precision PDFs, and supplier dashboards.
• Dynamic product catalog management with Excel import and flexible pricing.
• Robust order lifecycle tracking, including delivery confirmation with photos.
• User hierarchies, payment commission, analytics, and mobile-first procurement workflows." (client-provided description)